🎯 Course Description:
This 5-day technical course delivers an in-depth understanding of power transformer systems — from principles of operation and selection criteria to real-world practices in maintenance, diagnostics, testing, and troubleshooting.
Special focus is placed on oil-filled and dry-type transformers, condition monitoring techniques (DGA, insulation resistance, thermal imaging), failure modes, and preventive strategies in industrial, utility, and oil & gas environments.
The course features practical workshops, standards-based maintenance planning, and troubleshooting scenarios to prepare participants for field application.
👥 Who Should Attend:
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Electrical engineers and technicians
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Substation and maintenance personnel
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Utility and energy managers
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Transformer testing and commissioning teams
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Facility and plant engineers
🗓️ Day 1: Transformer Fundamentals and Operation
| Time | Topic |
|---|---|
| 08:30 – 09:00 | Welcome, Introductions & Course Objectives |
| 09:00 – 10:30 | Principles of Transformer Operation – Magnetic induction, losses, cooling |
| 10:30 – 10:45 | ☕ Coffee Break |
| 10:45 – 12:15 | Types of Transformers – Power, distribution, auto, dry-type, oil-immersed |
| 12:15 – 01:15 | 🍽 Lunch Break |
| 01:15 – 02:45 | Transformer Components & Construction – Core, windings, bushings, tap changers |
| 02:45 – 03:00 | ☕ Coffee Break |
| 03:00 – 04:30 | Workshop: Transformer nameplate data and parameter interpretation |
🗓️ Day 2: Selection, Sizing, and Installation
| Time | Topic |
|---|---|
| 08:30 – 10:00 | Transformer Sizing and Selection – Load calculations, derating factors |
| 10:00 – 10:15 | ☕ Coffee Break |
| 10:15 – 12:15 | Cooling Classes and Insulation Ratings – ONAN, ONAF, OFAF, Class A/B/F/H |
| 12:15 – 01:15 | 🍽 Lunch Break |
| 01:15 – 02:45 | Installation Best Practices – Clearances, earthing, seismic and fire safety |
| 02:45 – 03:00 | ☕ Coffee Break |
| 03:00 – 04:30 | Workshop: Transformer selection for industrial facility with backup source |
🗓️ Day 3: Maintenance & Condition Monitoring
| Time | Topic |
|---|---|
| 08:30 – 10:00 | Preventive Maintenance Techniques – Oil sampling, visual inspections |
| 10:00 – 10:15 | ☕ Coffee Break |
| 10:15 – 12:15 | Condition Monitoring Methods – IR scanning, DGA, insulation resistance |
| 12:15 – 01:15 | 🍽 Lunch Break |
| 01:15 – 02:45 | Transformer Oil Testing – BDV, water content, acidity, furan analysis |
| 02:45 – 03:00 | ☕ Coffee Break |
| 03:00 – 04:30 | Workshop: Analyzing transformer oil test reports |
🗓️ Day 4: Testing and Diagnostics
| Time | Topic |
|---|---|
| 08:30 – 10:00 | Electrical Tests – IR test, winding resistance, turns ratio, polarization index |
| 10:00 – 10:15 | ☕ Coffee Break |
| 10:15 – 12:15 | Offline and Online Diagnostic Tools – TTR, SFRA, tan delta, OLTC testing |
| 12:15 – 01:15 | 🍽 Lunch Break |
| 01:15 – 02:45 | Interpreting Test Results – Acceptable ranges and action plans |
| 02:45 – 03:00 | ☕ Coffee Break |
| 03:00 – 04:30 | Workshop: Developing transformer test procedures |
🗓️ Day 5: Troubleshooting, Failures, and Case Studies
| Time | Topic |
|---|---|
| 08:30 – 10:00 | Common Transformer Failures and Root Causes – Overheating, winding faults |
| 10:00 – 10:15 | ☕ Coffee Break |
| 10:15 – 12:15 | Troubleshooting Techniques – Visual cues, alarms, tripping, SCADA alerts |
| 12:15 – 01:15 | 🍽 Lunch Break |
| 01:15 – 03:00 | Case Studies: Catastrophic failures, misoperation, hidden defects |
| 03:00 – 03:15 | ☕ Coffee Break |
| 03:15 – 04:30 | Final Q&A, Practical Review, Feedback & Certificate Distribution |
📂 Course Materials Provided:
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Transformer inspection & maintenance checklist
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IEC/IEEE standard references for power transformers
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Oil testing interpretation charts
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Failure analysis case studies
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Sample transformer selection templates
